Trolley-controller.



' PATENTED APR. 9, 1907.

L T E B, H S a T E E H B 2 6 mm WON D u RM U E w Emu M I r m "5m m, W mL H 0m .1 R n A I a l/ illl. V v! M No84$457. PATENTED APR.9,1907;

-W.O.BURDON. TROLLEY GONTROLLERQ APPLIOATION FILED JAN. 27, 1908.

- 2 SHEBTS SHEET 2.

account of theifallingofthc conduction-wires take-up on the rope keepsthe latter under STATES PATENT Ol l ltQE.

WILLIS C. BURDON, OF LOUISVILLE, KENTUCKY, ASSIGNOR OF FOLTY- NINEONE-HUNDREDTHS TO (7. ll. JENIUNS AND TllOS. W. MORAN, JOINTLY, BOTH OFLOUISVILLE, KENTUCKY.

TROLLEY-OONTROLLER.

N0. 849,457. Specification of Letters Patent. Patented April 9, 1907.

Application filed January 27, 1906. Serial No. 298.165.

To all whon'z/ it 711/14 concern/.-

Be it known that l, \VILLIs C. BURDON, a citizen of the United States,resident of Louisville, in the county of Jell'eison and 5 State ofKentucky, have made a certain new and useful lnv; tion inTrolley-Controllers; other convenient manner. '..hepawl-slide is and Ideclare the following to be a full, ele 1', designed to move freely upand down on the and exact description of the same, such as catch-bar inzueordance with the movements will enable others skilled in the art towhich of the trolley-pole and is of sullicient weight [0 it appertainsto make and use the invention, to take up the slack of the rope at alltimes.

reference being had to the accompanying The pawl-slide consists of twomembers, a drawings, and to letters or figures of refer slide-piece 1),which loosely embraces the 6 5 ence marked thereon, which form a part ofcatch-bar, and a pivoted and weighted memhis specification. her 7:,having a pawl 'lhe slide--piece and r 5 The invention has relation tooverhead pawl member l: are pivoted together near trolleys forrailway-cars, referring particutheir upper portions and near the toothor larly to means forcoi'itrolling the trolley; and end of the pawl-aim,which is held in close it consists in the novel construction andcomprt'ixi'mit'y to the catch-bar without engaging bination of devices,as hereinafter set forth. the tee tl L of the same, by means of itsgravity,

:0 In the accompanying drawings, illustratand a spring device re,connecting the lower ing the invention, Figure l is an end vie ofportions of tire siide member and pawl memthe body of a car, showing theinvention apher. This spring device or connection conplied thereto. Fig.2 is a sectional detail ists of a bolt-rod, atension-spring inconnecvieW of one form of the pawl-slide engaging ion ti rewith, and anut whereby the ten- 25 the catch-bar. Fig. 3 is a top plan view of sionof the spring may be adjusted.

the same. Fig. 4 is a sectional detail view of The weight of thepawl-slide is so balanced the pawl-slide, and Fig. 5 is a sectional deithat its bearings will be held vertical and free tail view of anotherform of slide in engagcto move easily on the catch-bar. The pulley mentwithasmooth-surfaee catch-bar. 71 is pivoted in the upper part of thepawl 0 In the drawings, the letter a designates the member. As the ropepasses through a rear Wall of a car, and b the rope connected to bearingof the upper attachment-plate vertithe trolley-pole (not shown) anddepending cally above the pulley, it will at all times therefrom. have astraight vertical pull on the pawl- The object of the invention is totake up slide. Should the trolley leave the conduc- 3 5 the slack in thetrolley-rope b caused in passtion-wire, the sudden surge or jerk on theing conduction-wires of different heights and trolley-rope will (musethe commotion-spring to hold this rope automatically when the troltoyield and the pawl member to engage the 0 ley leaves theconduction-wire, so that the teeth of the :atch-bar, so that thetrolleytrolley-pole will not rise so as to cause dampole will be lockeddown and held from rising 4 age to the conduction-wires, guy-wires, oruntil the conductor can get to it and adjust trolley-pole or cause moreserious injury on it to proper position. As the automatic rope passesdownward around a pulley h, which is pivoted in the pawl member 7c ofthe 55 pawl-slide, said rope having its end portion extending upward andfastened to the upper t attachment-pl:tte, as indicated at n, or in i inthe street. I tension, the automatic catch is always ready To the wall ais attached a vertical catehfor action upon. a sudden jerk of thetrolley- 45 bar (I by means of connection-plates e at th rope, so that Iis designed to ell'ect a prompt upper and lower portions of the wall insuch locking down of the trolley when the latter wise that theintermet'liate portion of the leaves the condnotion-wire. 10o catch-baris left clear for the movement of a In Fig. 5 of the drmvjlngs is showna balanced pawl-slide], which is engaged by a modified form of theinvention, wherein the 50 loop of the trolley-rope. bar (.1 has a smoothinner surface and the The upper attachment or connection-plate pawl ofthe member 7c is dispensed with, be for the catchbar is provided wit: aguide Lug substituted by a. cam-lever l, pivoted to hole or bearing g,through wlncl the trolleyt the slule member 1),;11id having atailportion Z resting upon a transverse lug k of the pivoted member 7c.This cam-lever Zhas a camhead which is normally in close proximity tothe inner surface of the bar d, and upon a sudden surge or jerk of thetrolley-rope the connection-spring will yield and the camhead of thelever Z be caused to engage with the inner surface of the bar (1 in africtional manner, so that the trolley-pole will be locked down untiladjusted to proper position by the conductor.

An antifriction-roller 0 is employed at the upper end of the member p,working against the bar d.

Having described the invention, what I claim, and desire to secure byLetters Patent,

1. In a trolley-controller, the combination of a vertical catch-barattached to the wall of the car, a slide working upon said bar andconsisting of a main portion and a secondary portion pivoted to saidmain portion, a pulley carried by said secondary portion and adapted toengage a loop of the trolley-rope, a tension-spring connecting said mainand secondary portions, and means for engaging said vertical catch-barto stop the movement of the trolley-pole and slide upon sud den upwardmovement of the same.

2. In a trolley-controller, the combination ofavertical bar attached tothe wall of the car, a slide working upon said bar and consisting of amain portion and a secondary portion pivoted to said main portion, apulley carried by said secondary portion and adapted to engage a loop ofthe trolley-rope, a tensionspring connecting said main and secondaryportions, a cam-lever device pivoted to said main portion, and means inconnection therewith for causing said lever device to engage thevertical bar to stop the movement of trolley-pole and slide upon suddenupward movement of the same.

3. In a trolley-controller, a vertical bar attached to the wall of thecar, a slide working upon said bar and consisting of a main portion anda pivoted portion carrying a pulley enga ing a loop of the trolley-rope,a tensionspring connecting said main and pivoted portions, a leverpivoted to said main portion and having a tail resting upon a lug of thepivoted portion, said lever having a camhead adapted to frictionallyengage the vertical bar to stop the movement of the trolleypole andslide upon upward movement of the same, substantially as specified.

4. In a trolley-controller, a vertical bar attached to the wall of thecar, a slide working upon said bar and consisting of a main portion anda pivoted portion carrying a pulley engaging a loop of the trolley-rope,a lever pivoted to said main portion and having an arm resting upon thepivoted portion, said lever having a cam-head adapted to frictionallyengage the vertical bar to stop the movement of the trolleypole andslide upon upward movement of the same, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIS C. BURDON.

Witnesses:

TI-Ios. W. MORAN, J. WV. ZIMMERMAN.

